Anytime I try to visit facebook on my PC using the URL http://www.facebook.com, it loads a blank page as shown below. I can only visit facebook using the URL https://www.facebook.com i.e using https instead of http. This happens on all my browsers. Other PC connected to my LAN also experience the same problem. They can only browse facebook using secure connection (https) which does not allow the use of some facebook apps and does not allow signing out sometimes. What could be responsible for this?

Are you behind a proxy on you local network? I do know its filtered at a certain client of ours location at the internet gateway, but we somehow get to access the site via HTTPS. Guess most access filtering application/proxies cannot read the tag for encrypted links.

Try connecting to another internet access point and see if the site comes up.

Thanks for the reply. I connect directly to the internet without going through any proxy server. It seems the problem is with ETISALAT network that I use in accessing the internet because the site loads fine whenever I switch to another Internet Service Provider. I've contacted Etisalat customer service and they insisted the problem is not with their network yet I'm not the only one experiencing this on their network.